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User Manual for BOSCH models including: BR21, 2AAJCBR21, MQB37WBR21, Radio Frequency Transceiver, MQB37WBR21 Radio Frequency Transceiver
Robert Bosch GmbH BR21 Body Computer Modul 2AAJCBR21 2AAJCBR21 br21
File Info : application/pdf, 10 Pages, 784.83KB
DocumentDocumentVon XC-AN/PAB2-Bp Bearbeiter Szentannai Zsolt Telefon-Durchwahl +36 1 879-7081 User Manual MQB 37W BR21 Homologation: Radio Frequency Transceiver Marketing Name MQB37W Equipment Product Code BR21 Customer VW AG. Number offer drawing Manifacturer F005VS0400 Robert Bosch GmbH Daimlerstraße 6. 71229 Leonberg Germany Budapest 08.01.2021 H-1103 Budapest Gyömri út 104. E-Mail: zsolt.szentannai@hu.bosch.com Tel.: +36 1 879 7081 Seite 1 von 10 Von XC-AN/PAB2-Bp Bearbeiter Szentannai Zsolt Telefon-Durchwahl +36 1 879-7081 Budapest 08.01.2021 Functional Description of radio frequency transceiver for MQB BCM Product: BCM (Body Computer Module) Brand Name: Bosch Model Name: BR21 Hardware version: HW24 1 General Description The radio frequency transceiver is part of a body computer ECU. The ECU incorporates several HW-inputs and HW-outputs, which monitor and control body computer functionalities in a car (e.g. light control and central door locking). The ECU consists of a plastic housing, PCB, electronic components and connector pins. The radio frequency transceiver functionality will be explained in more detail in the below documented sections. Seite 2 von 10 Von XC-AN/PAB2-Bp Bearbeiter Szentannai Zsolt Telefon-Durchwahl +36 1 879-7081 Budapest 08.01.2021 2 HW Interface The radio frequency transceiver is supplied via the specified connector pins. The antenna of the radio frequency transceiver is a PCB-edge antenna, which is incorporated in the PCB of the ECU. 2.1 Connector Position on housing 2.2 Supply and GND pins: Supply (+) GND (-) : Pin-No# A66, A73, C1, C73 : Pin-No# A63, C63 LED+ Pin is connected to Pin A59. 2.3 Normal Operating conditions: Supply Voltage : 9V to 16V, typ. 12V Environment Temperature : -40°C to +80°C Seite 3 von 10 Von XC-AN/PAB2-Bp Bearbeiter Szentannai Zsolt Telefon-Durchwahl +36 1 879-7081 3 System Block Diagramm MQB37W BCM Budapest 08.01.2021 Below drawn block diagram of the MQB BCM shows the main function blocks of the ECU. Voltage Regulator LIN-Bus CAN-Bus Digital Inputs Analog Inputs Watchdog Microcontroller Radio Frequency Transceiver (Atmel ATA5833) PCBAntenna Outputs In section 0, the design of the radio frequency transceiver is outlined. Seite 4 von 10 Von XC-AN/PAB2-Bp Bearbeiter Szentannai Zsolt Telefon-Durchwahl +36 1 879-7081 4 Block Diagram of inbuilt Radio Frequency Transceiver Budapest 08.01.2021 Seite 5 von 10 Von XC-AN/PAB2-Bp Bearbeiter Szentannai Zsolt Telefon-Durchwahl +36 1 879-7081 Budapest 08.01.2021 The radio frequency transceiver has the following key data: Seite 6 von 10 Von XC-AN/PAB2-Bp Bearbeiter Szentannai Zsolt Telefon-Durchwahl +36 1 879-7081 Budapest 08.01.2021 Functional description The radio frequency transceiver is part of a remote keyless entry system of a vehicle central door locking system. This vehicle central door locking system consist out of Remote control key with UHF transmitter (NOT part of the MQB BCM) Radio frequency transceiver with PCB-Antenna (part of the MQB BCM) Door ECU, which can drive the car door locks to lock or unlock the car (NOT part of the MQB BCM) Door locks for the central door locking functionality (NOT part of the MQB BCM) The transceiver has a self-polling mode and is permanently scanning for valid key data, with matching characteristics. (Note: This data are typically received, when a valid remote control key is in range and one of its push-buttons is pressed.) When the data are matching the characteristics, the transceiver will hand over this data to the micro controller of the MQB BCM. With the help of this micro controller, it is validated, whether this data have been transmitted from the authorized remote control key. When the validation was successful, the MQB BCM will send this information via a CAN-network to the door ECU. This door ECU will drive the connected door lock according to the wish of the operator, who pressed the push button of the remote control key. Hence the doors will be locked or unlocked. The MQB BCM needs to be programmed by the OEM, after installing the ECU into the car. Once programmed, the transceiver is operable directly after applying power to the connector pins. Seite 7 von 10 Von XC-AN/PAB2-Bp Bearbeiter Szentannai Zsolt Telefon-Durchwahl +36 1 879-7081 Budapest 08.01.2021 5 Regulatory notice for FCC §15.19: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. for USA §15.21: NOTICE: Changes or modifications made to this equipment not expressly approved by Robert Bosch GmbH may void the FCC authorization to operate this equipment. for Canada RSS-GEN, 8.4: This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to the following two conditions: 1. This device may not cause interference. 2. This device must accept any interference, including interference that may cause undesired operation of the device. CNR-GEN, 8.4: L'émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d'Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : Seite 8 von 10 Von XC-AN/PAB2-Bp Bearbeiter Szentannai Zsolt Telefon-Durchwahl +36 1 879-7081 Budapest 08.01.2021 1. L'appareil ne doit pas produire de brouillage; 2. L'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. 6 Product pictures Top side: Seite 9 von 10 Von XC-AN/PAB2-Bp Bearbeiter Szentannai Zsolt Bottom side: Telefon-Durchwahl +36 1 879-7081 Budapest 08.01.2021 Szentannai Zsolt XC-AN/PAB2-Bp Seite 10 von 10